Gold, Umangite, Tiemannite, Clausthalite, Berzelianite, Calcite
Brummerjan Mine, Zorge, Walkenried, Göttingen District, Lower Saxony, Germany
New insights into the fine-grained, opaque selenide veinlets of the Brummerjahn Mine, Zorge. Photo 20.
Tiny inclusions of native gold (light-yellow), eucairite (grayish-crème), umangite (purple), berzelianite (blue), tiemannite (light-gray), and clausthalite (bright), in calcite matrix (dark-gray). Polished section, plane polarized reflected ...
© Günter Grundmann, Detmold